Boat



,445,467. C- L BOAT.

FILED SEPT.13, 1919.

2' H MM reiterated Feb. 13,

. a "w m 1B gar 71.

CARL 3'. BABE, OF RIVERSIDE, ILLINOIS.

BOAT.

Application filed September 13, 1919. Serial No. 323,471.

To all whom it may concern.

Be it known that ii, CARL. J. Bar-1n, a citizen ot the 'United States,and a resident of Riverside, in the county of Cook and State olIllinois, have invented a certain new and useful improvement in Boats,of which the following is a specification.

The invention relates to improvements in means for propelling boatsthrough the water and has for its objectthe provision of improved boatpropelling means, by means of which boats may be propelled throughshallow water with a minimum expenditure of energy.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings forming a part oi this specification and in which:

Fig. 1 is a top plan view shown partially in section of a boat embodyingthe inven tion; th section being taken on line 11 of Fig. 3

Fig. is a side view of. the sameand Fig. 3 is an end view 01' the same.

The preferred form of construction as illustrated in the drawings,comprises a boat body, l, of any usual or desired construction andhaving tubes, 5, arranged along the opposite side thereof, below thewater line. .l. series of worm. propellers. 6, 7. and S, is arranged ineach of the tubes. 5, each propeller section being mounted to operatein-- dependently of the other and equipped with a suitable drivingsprocket for this purpose. Each of the sprockets, 9, is connected by a.sprocket chain, 4.0, and a. corresponding motor, 11, mounted on the deckof the boat, suitable openings being provided as indicated for thepassage of these chains, and whereby the various worm propeller sectionsmay be operated independently of each other. The worm section, 7. is o!somewhat great-er pitch than the worm section 6, and the worm section,8, is of somewhat greater pitch than the worm section, 7, that asvelocity of movement is added to the stream of Water passing through thecorresponding tube, 5, the speed of thrust of the worm sections iscorrespondingly increased so as to compensate therefor, thus obtainingan effective thrust on the water stream throughout all portions of thepropellers, and greatly increasing the velocity oi. the Water discharge.The internal bores of the tubes, 5, are correspondingly decreased tocompensate for the increase in velocity and prevent the formation oi a.vacuum. In this way, simple and effective means is provided forpropelling boats through shallow water. 7

To further facilitate the PIOpHlSlUIl ot the boat, I arrange twooppositely acting paddle wheels, 12, at the bow or front portion of theboat; said paddle wheels being only partially submerged and mounted onsuitable propeller shafts, 13, extending through the. bow of the boat,as shown. The paddle wheels, 12, are connected as shown, to be. drivenin opposite directions by an electric motor, 14. By this arrangement. itwill be observed that the waternormally resting in front of the bow oithe boat, will be constantly and positively displaced laterally andoutwardly to make space for the passage of the boat through the waterand to supply the additional water necessary tor the effective operationof the propeller sections, 6,7, and 8.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention; I, therefore, do not wish to be limited to the precisedetails of construction set Forth. but desire to avail myself of suchvariations and modifications as come within the scope of the appendedclaims.

Having thus fully illustrated and dc scribed my invention, what I claimto be new and desire to secure by Letters Patent is:

1. A boat-like body provided with an open-ended housing at each sidethereof, a plurality of propelling members arranged in alignment in eachhousing, each member being of greater thrust than the preceding member,and means carried by the body and adapted to furnish a constant supplyof ater to said housings.

2. A boat-like body provided with an open-ended housing at each sidethereof, plurality of worm propellers arranged in alignment in eachhousing, each member being of greater pitch than the preceding memberand means rotatably mounted adjacent the front end of each housing, andadapted to force a constant supply of water to the front end of saidhousings.

3. A. boatlike body provider] with an the front end of each. housing,adapted to open-ended housing at each side thereof a force a constantsupply of water thereto. plurality of Worm propellers arranged inalignment in each housing each propeller CARL BABE 5 being of greaterpitch than the preceding Witnesses:

propeller. means for operating each prov VALTER J. WARE,

peller independently, and means adjacent CHAS. A. BEATY.

